Collapsible lead-pencil housing.



A. SHATKIN.

COLLAPSIBLE LEAD PENCIL HOUSING.

APPLICATION FILED JUNE 18, I918.

Patented Jan. 28, 1919.

WITNESSES A TTOR/VEYS AARON SHATKIN, OF BROOKLYN, NEW YORK.

COLLAPSIBLE LEAD-PENCIL HOUSING.

Specification of Letters Patent.

Patented Jan. 28, 1919.

Application filed June 18, 1918. Serial No. 240,659.

To all whom it may concern:

' which the following is a full, clear, and

exact description.

My invention relates to collapsible lead pencil housings and an object of the invention is to provide a simple and inexpensive construction which is characterized by its rigidity when the pencil housing is fully extended.

With the above and other objects in view, the nature of which will more fully appear as the description proceeds, the invention consists in the novel construction, combination and arrangement of parts as herein fully described, illustrated and claimed.

In the accompanying drawings, forming a part of the application, similar characters of reference indicate corresponding parts in all the views.

Flgure 1 1s a longitudinal section through my lead pencilohousing when the same is fully extended; and

Fig. 2 is a similar section'when the same is collapsed.

Referring tothe drawings, 3 is the lead holder one end of which is anchored in a recessi of the inner yielding member 5 of the lead grip. The lead holder 3 is widened at the end to fill the recess 4 and then the edge of the recess is rolled about the enlarged end of the holder 3 thereby anchoring the holder 3 in the member 5.

A tube 6 has one end of same anchored-t0 the member 5 by rolling the end of said tube about a rounded shoulder 7 provided on the member. In consequence, the member 5 will maintain the tube 6 coaxial with the holder 3 and the two are firmly secured to the member 5. A threaded section 8 is provided on the member 5, which is separated from the shoulder 7 by a groove 9, into which the end 10 of the cap 11 is depressed so that the cap although free to move on the thread is prevented from falling off the member 5, the cap serving as means for compressing the yielding portions of the member 5 to grip the lead 12 therein.

A tube 13 fitting snugly into the tube 6 has the end engaged in the tube 6 reduced to form a collar 14 fitting snugly on the holder 3. The portion 15 of the holder extending into the tube 13 is enlarged whereby the holder 3 with the tube 6 are prevented from separating from the tube 13. Into the other end of the tube 13 the enlarged. end 16 of a tube 17 is engaged. A tube 18 concentric with the tube 13 and fitting snugly about the tube 6, has its end remote from the tube 6 rolled with and about the tube 13 to form a lock 19 which fits snugly about the tube 17. This lock 19 unites the tubes 13 and 18 into a unit and also prevents the tube 17 from being withdrawn from tube 13. The end 20 of the tube 17 is reduced and passed through a central opening in a disk .21 against which the extremity of the end 20 of the tube 17 is rolled so that the disk is locked to the tube 17, as will be clearly seen. To the margin of the disk 21, the end 22 of a tube 23 is crimped, the tube being of proper size to fit snugly over the tube 18. It will be noted that the disk 21 unites the tubes 23 and 17 into a unit, the holder 3 and tube 6 being united'into a unit by the member 5 of the lead grip.

Over the end 22 and the disk 21 a cap 24: is fitted the margin of the 1 cap being crimped about the end 22 of the tube 23. In the cap 24: a. yielding clip is mounted, which preferably has a ring 26 outside of the end which serves for suspending the pencil housing and also for manipulating the clip. The end 15 of the holder 3 has notches 27 adapted to be engaged by the clip 25 and whereby the pencil is retained in the collapsed position shown in Fig. 2. When pull is exerted on the cap 11 the holder 3 is disengaged from the clip 25 and the pencil housing may be extended as shown in Fig. 1. The housing 3 with the tube 6 moves until the end 15 engages the collar 14 of the tube 13 when the same will be drawn with the tube 18 until stopped by the enlarging ends 16 of the tube 17.

It will be noted that the structure will be maintained rigid in the extended position for the reason that the outer tube 23 serves as a guide for the section of the tube 18 engaged therein when the pencil is extended, and the enlarged end 16 serves as a guide for the tube 13, therefore there is an inner and an outer support for the end of the middle section formed by the tubes 13 and 18 in the outer section formed by the tubes 23 and 17 The portion of the tube section remaining engaged between the tubes 18 and 13 is firmly supported thereby, as will be seen from Fig. 1, the collar 14 forming the additional support for the holder 3 and in consequence the unit formed by the tube 6 and the holder 3 is firmly supported in the extended position by the middle unit section.

I claim:

1. A collapsible lead pencil housing comprising a unitary section formed of two concentric tubes united rigidly at one end, anothe section formed of two concentric tubes united at one end said second section being mounted to slide between the two tubes of the first section, said first section having means for preventing the second section from slipping out from the first, and a third section formed of two concentric tubes rigidly united at one end having one of the tubes engaged between the tubes of the secend section, the inner tube of the third section engaging the inner tube of the second section, said inner tube of the third section having means for preventing the third section from being separated from the second section, and means associated with the first section for engaging the third section when the housing is collapsed and whereby said housing is locked in the collapsed position.

2. A collapsible lead pencil housing comprising three sections each formed of an inner and an outer tube, the tubes of the middle section being adapted to slide between-the tubes of the larger, or outer section, the tubes of the third section fitting into the tubes of the middle section, means for gripping the lead associated with the third section, and a catch associated with the outer section for engaging the third section when the housing is collapsed.

3. In a collapsible lead pencil housing, an outer section formed of an inner and outer tube, a disk connecting one end of said tubes, a cap connected to the outer tube and cover- Gopiea of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

ing said disk, a middle section formed of two tubes interlocked at one end, the interlocking end of said section fitting between the tubes of the outer section the inner tube of the outer section being enlarged to engage the interlocking end of the middle section and prevent said section from being separated from the other sections, a third or inner section formed of an inner tube and an outer tube,'a lead grip to which said tubes of the inner section are connected at one end the outer tube of said inner section fitting snugly between the ubes of the middle section, the inner tube of the middle section being reduced to fit snugly about the inner tube of the inner section, said inner tube of the inner section being enlarged at the end to prevent said inner section from being separated from the middle ssection, and a catch associated with the cap for engaging the large end of the inner tube of the inner section.

4. A collapsible lead pencil housing comprising three sections, each formed of a pair of spaced concentric tubes united into a unit at one end, a lead grip associated with one of the extreme sections, and a catch associated with the other extreme section for engaging the extreme section when the housing is collapsed.

5. A collapsible lead pencil housing comprising three sections, each formed of an inner and an outer tube, the tubes of the middle sections being adapted to slide between the tubes of the outer section, the outer tube of the third section fitting between the tubes of the middle section, the inner tube of the third section fitting into the inner tube of the outer section, and a catch associated with the outer section for retaining the housing in collapsed position.

AARON SHATKIN.

Washington, D. G. 

